"The official language of the Republic of Latvia is Latvian. The Latvian language, like Lithuanian and the extinct Old Prussian language, belongs to the Baltic language group of the Indo-european language family. Russian is by far the most widespread minority language, also spoken or at least understood by large sections of the non-Russian population. The Latgalian language is widespread in Latgale (most linguists consider Latgalian a dialect of the Latvian language). Kuronian/Couronian is another Latvian dialect and spoken in Kurzeme, though less popular than Latgalian."
Plus just because you speak the language of a country doesn't mean you're from this country... For instance French is one of the official languages in Belgium but the ppl who speak it as their mother tongue are Belgian, not French